Stir in heavy cream with rubber spatula or fork until dough begins to form, about 30 seconds.

Transfer dough and all dry, floury bits to countertop and knead dough by hand just until it comes together into a rough, slightly sticky ball, 5 to 10 seconds. Cut scones into 8 wedges. Place wedges on ungreased baking sheet. (Baking sheet can be wrapped in plastic and refrigerated for up to 2 hours.).